Water-circulating device for gas engines



K. S. KNUTSON, DECD.

C. KNUTSON, ADMINISTRATOR.

WATER CIRCULATING DEVICE FOR GAS ENGINES.

m APPLiCATlON FILED OCT. 2&1920. i 4z@?3,@@@ Patented Jan. 19, 1922 2 SHEETS-SHEET 1.-

KNUTE 33. K NUTSON K. s. NUTSON, DEQD C. KNUTS ON ADMINISTRATOR.

WATER CIRCULATING DEVICE FOR GAS ENGINES.

APPLICATION FILED OCT. 26, I920.

Patented Jan. 10, 1922 2 SHEETSSHEET 2.

WNUTE s. mu'rsow OI SAID El. KNUTHDN. DECEASED.

WATEBrCIRGULZ-EEING DEVICE FOR- GAS ENGINES.

Specification of Letters Patent.

Application filed fic'tobei 26, 1920.

lie it. known that l, Known S. intrrsom a citizen of the United Staten, residing at lllinnenpolis, in the rount oi llennepin and hitnte oi Minnesota, have invented certain new and ueelul lin n'ovcnaents in lV-utcr-(nn culutinw' Devices For (ins Engines, oi which the l ohonin hr is n Hpecil'icntion.

Thin invention relates to improvements for :15 engines and the 11min object to proride u nirnplc eiiicicut and practical derive for mechanically rireuoiting the Water inthe eoolingr syzwteiu oi the engine. Other ohje will he disrlosed in the course of the following specification and in the necoinpzinringr drawings. in which:

Fig. l is a front elevation of u gas engine equipped with my llllpllll'fll circulating; inechmiinm,

l'i g'. is n11 enlarged detail sectional View on the line Z -2 in Fig. 1.

Fig". 3 i.-; an enlarged detail sectional Vien on the line 3--3 in Fig. l.

ylei erring to the drawing by reference numernir's 4: denigrnuten n Well known type of engine having an elbow 5 up through n'hich the Water from the cording jackets; passes to the radiator (not shown). The rodintor in roohd h :1 inn (also not shown) on a. ton shell; 6 which provided with n pulley 7 adapted to he driven by a fan hclt The elbow 5 provided with an integral extension 9 on which i'otntzdily swingrs n 1U. flnid lover arm retained lever arm in plaice by the wide. flange ll of a nipple 152 which is securely threz'uled voin-entrienlly into the extension 1). A shaft 13 in joinnailed to rotate concentrically in the nipple 12. '\'\2li+;i-ti 1'lli j int lining oil'ceted by means oi sultnhle packing l being held in place in :1 not l screwed onto the outer end oi the nipple 1K pulley l secured by a set screw l'i' to the shall 13, and Which together with n roller '18 prevents the shaft l?" from moving longritudinnlly in ite hearihe inner end of the shaft; 13 is proded with propellers; 1?). illhesie propellers or propeller hlndes may all he secured to one i so desired, hut it- 'tound pref- :J 'li' orni io to have a few on each of two collars i l and, placed in spaced and staggered rein-- tion. as sham-n in Fl as this arrangement will allow l end having Patented Jun. 1%, 19275..

Serial No. 419,716.

by convection when the engine not running.

The pulley 16 is connected by a belt 21V to it second pulley 22 which is rotatably mounted on a. spindle The spindle 23 is zuljnstzilily secured by :1 nut 24 in slot in the lower end of the lever min 16. An expanding coil spring; is positioned be tween a stud .27 on the elbow 5 and a pro jeetion 28 of the lever arm 10, and has for its purpose to push the pulley 22 against the nm belt 8. This not only keeps the fan hell: tight but also ereetee the friction which is necessary for causing the fan belt to actuate the belt 91.

lVith the device constructed and attached as uhove set forth it is ohvions that When the engine is running the Water in the co0ling system will be thoroughly and ellieiently circulated h meansof the propeller fans 19, resulting in a faster cooling of the. engine and a higher degree of eiilciency therefrom.

It is understood that suitable modifications may he made in the form and structure of this device if such modifications come within the scope and spirit. of the appended claims.

Having now therefore fully shown and described my invention, what I claim to be new and desire to protect by Letters Pat-- exit is: v

1. A water circulating device or ennines consisting of n coupling adapted to be inserted between the engine and the radiator thereot, u hearing nieinher integral with and mtendiiuz horizontally out from said coupling ns'na't't journaled to rotate in said bearing member. propellers on the inner end and 2:. no ley on the outer end of the shaft, a lever nrin trunnioned with its upper end on said hearing member so as to swing concentrically with the shaft, a pulley mounted on the lower end of said lever arm a belt pinning ov r said pulleys. and spring means for pressing Said heltagainst the fan helt oi the engine.

2. A. water circulatingdevice for engines consisting of a shaft ionrlnilcd in the engine and extending with its inner end into :1 water passageway of the engine, said shaft impellers thereon a pulley mounted on t outer end of the shaft, a

\viltei. to Qiri-ulnte more freely lever nrni mounted to swing on acenter corresponding to-the center of said pulley, a

second pulley mounted on the swinging end of saitl lever arm, a belt passlng over sanl pulleys, an integral stud extencllng out from the lever arm, a complementary studfixed 0n the engine above the first inentionecl stud. and a compression sprlng positioned between the stud for.- ho](ling them in yieldingly 1 spread posit-itinc l0 ple threaded into said coupling}! shaft journaled in the nipple, a propeller on the inner end and a pulley on the outer end of the shaft; a lever arm trunnioned with its upper end on the hearing member so as to swine concentrically with the shaft, an integral flange on the nipple adapted to retain the lever arm on'the bearing member, a second mlle 0n the lower end of the lever arm. a belt passing over the pulleys, HXHllllQnIlSIfOI yieldinglw pressing said'belt against the fan belt of the engine.

In testimony whereof I ailix my signature.

KNUTE S. KNUTSON. 

